Searchlight RC1 released

Yahooo!!! We just released Searchlight Stein RC1 last week [1][2]. The stable/stein branch has been created for all of the projects. Here are the versions:

- searchlight:
- searchlight-ui:
- python-searchlightclient: 1.5.0

Moreover, we also added some highlights for Searchlight in this Stein cycle  [3]. There will be not much going on for the rest of the cycle, only minor changes. And, since we're busy preparing for the next term with more features to fulfill the Searchlight's vision [4], we will focus on designing the architecture and make Searchlight more stable.

BTW, I will continue serving as Searchlight's PTL for Train :) So, let's rock it!!!